Results 141 to 150 of about 1,334,479 (354)

Using Parallel Active Power Filter Based on Voltage Detection on a Radial Distribution Feeder with the Aim of Reducing the Harmonic Propagation and Whack-a-Mole Phenomena [PDF]

Journal of Intelligent Procedures in Electrical Technology, 2012
In order to damping of harmonic propagation phenomenon, active power filters are installed on distribution networks. Active power filter installed on buses may cause harmonic oscillation phenomenon and whack-a-mole. In this paper, a parallel active power
Hamid Reza Ezati, Ali Yazdian Varjani
doaj  

Multi-loop Control Systems of Compensators for Powerful Sounding Pulses Generators [PDF]

, 1996
Construction principles of multi-loop control systems of compensators for powerful sounding pulses generators are presented. A method for controlling a compensating system using fuzzy logic and forecast control ideas is described.
Knepper, M., Lugscheider, Erich, Wagner, W., Wahlmann, U.   +3 more
core  

What Do Large Language Models Know About Materials?

Advanced Engineering Materials, EarlyView.
If large language models (LLMs) are to be used inside the material discovery and engineering process, they must be benchmarked for the accurateness of intrinsic material knowledge. The current work introduces 1) a reasoning process through the processing–structure–property–performance chain and 2) a tool for benchmarking knowledge of LLMs concerning ...
Adrian Ehrenhofer, Thomas Wallmersperger, Gianaurelio Cuniberti   +2 more
wiley   +1 more source

Direct current control of an active power filter for harmonic elimination, power factor correction and load unbalancing compensation [PDF]

, 2003
An active power filter is designed, simulated, implemented, and tested. It can work in different modes: active power filtering, power factor correction, and load unbalance compensation.
Adriano S. Carvalho, António P. Martins, Helder J. Azevedo, José M. Ferreira   +3 more
core  

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

Advanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini, Lu Fang, Jacob Bons, Mohammad Humaun Kabir, Evan Johnson, Joe Kosmoski, Hong Liang   +6 more
wiley   +1 more source

Hybrid Filter Compensation Device Applied in Mine Hoist Power Distribution System

Kongzhi Yu Xinxi Jishu, 2017
According to the load characteristics of mine distribution system, it tested the pollutions of non-active power and harmonics produced by mine upgrade machine system with AC frequency conversion speed control.
LI Zhong, LIU Fei, ZHANG Fei, TANG Xianghua, CHEN Bin, LIU Xiangdong   +5 more
doaj  

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

Advanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen, Anastasiya Toenjes, Annika Bohlen, Thomas Seefeld   +3 more
wiley   +1 more source

Hybrid simulation: an active power filter case study

Ingeniería e Investigación, 2011
The hybrid simulation concept consisting of a combination of computer simulation and laboratory tests. This approach is a cost effective alternative to physically testing the whole system and allows better understanding of complex coupled systems.This ...
Y. A. Garcés, E. A. Cano-Plata, A. J. Ustariz-Farfan   +2 more
doaj  

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Fuzzy Controller with Shunt Active Power Filter in Reducing THD for Three Phase System

International Transactions on Electrical Engineering and Computer Science
In recent years, power electronics devices have advanced and are now employed in a variety of applications. Furthermore, this gadget produced an issue with power quality in the electrical system.
K. Hemasri, Ch. Srinivasa Kumar
doaj   +3 more sources